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PennDOT D4 Field Devices

Pennsylvania Department of Transportation Engineering District 4-0-operated field devices.  Includes existing/future DMS, HAR, CCTV, and AFLADS equipment, as well as low-technology solutions such as predetermined detour routes and 1/10 of a mile markers.

PennDOT D4 Field Devices Element Architecture (23KB PDF)*

Flow definitions - General definitions of the architecture flows used in the document

*Viewing the architecture flows requires Adobe Reader, a free software for downloading PDF documents.  Click here to download Adobe Reader.

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Site last updated: September 6, 2006